[ 9.470514][ T173] ip (173) used greatest stack depth: 23712 bytes left [ 9.470533][ T173] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.470535][ T173] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 173, name: ip [ 9.470537][ T173] preempt_count: 2, expected: 0 [ 9.470538][ T173] RCU nest depth: 0, expected: 0 [ 9.470539][ T173] locks held by ip/173: 5, last CPU#3: [ 9.470541][ T173] #0: ffffffffb0e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.470553][ T173] #1: ffffffffb0f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.470558][ T173] #2: ffffffffb0f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.470561][ T173] #3: ffffffffb0e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.470564][ T173] #4: ffffffffb0e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.470568][ T173] irq event stamp: 19938 [ 9.470569][ T173] hardirqs last enabled at (19937): [] __down_trylock_console_sem+0x86/0xa0 [ 9.470572][ T173] hardirqs last disabled at (19938): [] console_emit_next_record+0x3d4/0x4c0 [ 9.470574][ T173] softirqs last enabled at (19758): [] handle_softirqs+0x67c/0x900 [ 9.470576][ T173] softirqs last disabled at (19751): [] __irq_exit_rcu+0x145/0x1c0 [ 9.470578][ T173] Preemption disabled at: [ 9.470579][ T173] [<0000000000000000>] 0x0 [ 9.470585][ T173] CPU: 3 UID: 0 PID: 173 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.470589][ T173] Tainted: [W]=WARN [ 9.470590][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.470592][ T173] Call Trace: [ 9.470593][ T173] [ 9.470595][ T173] dump_stack_lvl+0x6f/0xa0 [ 9.470600][ T173] __might_resched.cold+0x1fe/0x2c1 [ 9.470604][ T173] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.470608][ T173] ? __kmalloc_noprof+0xdb/0x760 [ 9.470613][ T173] __kmalloc_noprof+0x443/0x760 [ 9.470616][ T173] ? alloc_buf.isra.0+0x4b/0x260 [ 9.470622][ T173] ? do_raw_spin_unlock+0x59/0x250 [ 9.470624][ T173] alloc_buf.isra.0+0x4b/0x260 [ 9.470628][ T173] put_chars+0x1e1/0x2f0 [ 9.470631][ T173] ? __send_to_port+0x420/0x420 [ 9.470632][ T173] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.470636][ T173] ? validate_chain+0x38b/0xc20 [ 9.470642][ T173] hvc_console_print+0x292/0x780 [ 9.470648][ T173] ? hvc_write+0x3a0/0x3a0 [ 9.470650][ T173] ? rcu_is_watching+0x16/0xd0 [ 9.470652][ T173] ? lock_acquire+0x13c/0x160 [ 9.470656][ T173] console_emit_next_record+0x22f/0x4c0 [ 9.470660][ T173] ? devkmsg_read+0x4b0/0x4b0 [ 9.470661][ T173] ? console_flush_one_record+0x106/0x710 [ 9.470663][ T173] ? rcu_is_watching+0x16/0xd0 [ 9.470665][ T173] ? lock_acquire+0x13c/0x160 [ 9.470669][ T173] console_flush_one_record+0x46f/0x710 [ 9.470673][ T173] ? console_emit_next_record+0x4c0/0x4c0 [ 9.470674][ T173] ? __lock_acquire+0x518/0xc20 [ 9.470679][ T173] console_unlock+0xee/0x1f0 [ 9.470681][ T173] ? console_flush_one_record+0x710/0x710 [ 9.470682][ T173] ? rcu_is_watching+0x16/0xd0 [ 9.470684][ T173] ? lock_acquire+0x60/0x160 [ 9.470688][ T173] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.470690][ T173] ? vprintk_emit+0x320/0x3e0 [ 9.470693][ T173] vprintk_emit+0x37c/0x3e0 [ 9.470696][ T173] ? wake_up_klogd_work_func+0x90/0x90 [ 9.470699][ T173] ? __lock_acquire+0x518/0xc20 [ 9.470702][ T173] _printk+0xc7/0x100 [ 9.470706][ T173] ? snapshot_read.cold+0x21/0x21 [ 9.470709][ T173] ? do_raw_spin_lock+0x131/0x280 [ 9.470712][ T173] ? __rwlock_init+0x150/0x150 [ 9.470715][ T173] ? do_raw_spin_lock+0x131/0x280 [ 9.470718][ T173] do_exit.cold+0x82/0x9c [ 9.470722][ T173] ? exit_notify+0x890/0x890 [ 9.470723][ T173] ? __lock_release.isra.0+0x69/0x1a0 [ 9.470726][ T173] ? rcu_is_watching+0x16/0xd0 [ 9.470730][ T173] do_group_exit+0xb8/0x370 [ 9.470732][ T173] __x64_sys_exit_group+0x3c/0x50 [ 9.470734][ T173] x64_sys_call+0x1567/0x1570 [ 9.470737][ T173] do_syscall_64+0xff/0x530 [ 9.470741][ T173] ? exc_page_fault+0xee/0x100 [ 9.470744][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.470746][ T173] RIP: 0033:0x7fbe25d7e1b8 [ 9.470749][ T173] Code: Unable to access opcode bytes at 0x7fbe25d7e18e. [ 9.470750][ T173] RSP: 002b:00007fffed080b38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.470752][ T173] RAX: ffffffffffffffda RBX: 00007fbe25eaef88 RCX: 00007fbe25d7e1b8 [ 9.470753][ T173] RDX: 00007fbe25ac8fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.470754][ T173] RBP: 00007fffed080b90 R08: 0000000000000000 R09: 0000000000008010 [ 9.470755][ T173] R10: 00007fffed080950 R11: 0000000000000246 R12: 0000000000000001 [ 9.470756][ T173] R13: 0000000000000000 R14: 00007fbe25ead680 R15: 00007fbe25eaefa0 [ 9.470762][ T173]